Ink, Soil, and the Wrathful Farmer

"Die, you cabbage-trampling heathens!" I bellow, swinging my oversized calligraphy brush like a battleaxe. I just wanted a good harvest of spiritual radishes, but these pompous sword cultivators from the Heavenly Decree Bureau had to crash through my fences, blathering about unorthodox sects. Maintaining my cheerful farmer persona is hard when my temper is this violently short. In a fit of rage, I slammed my brush into the dirt and wrote the character for 'SMASH'. To my absolute shock, a twenty-foot glowing word physically manifested and swatted their grandmaster into the stratosphere. Now I'm enemy number one. Magistrate Jian Wusheng, the strict enforcer of the Heavenly Dao, is determined to execute me for defying the natural order. But the more I try to peacefully farm, the more arrogant traditionalists I accidentally crush. When I wrote the character for 'Lullaby' and the resulting gentle song shattered their grand magical execution formation, Jian Wusheng's worldview broke entirely. Yet, as my power grows, I'm finding cryptic journals buried in my fields. My absent master didn't leave me this farm. I left it for myself before erasing my memories. What apocalyptic threat was my past self preparing for?